Table 26 



Sturgeon Bay Breakwaters 



Sturgeon Bay Canal, Wisconsin 



Date(s) Construction and Rehabilitation History 



1873- Construction of arrowhead breakwaters was completed at the entrance 

 1880 canal to Sturgeon Bay (Figure 67) during this time. The breakwaters 

 were each constructed 1,344 ft long. The shorewardmost portions of 

 each structure (Figure 68, Sections A and B) were constructed of 

 woodpilings, and the remaining portions of the breakwaters were of 

 stone-filled timber crib construction. Riprap breakwater toe protec- 

 tion was also provided. The shoreward 762-ft lengths of each break- 

 water (Figure 68, Section A) were constructed to a width of 15 ft. 

 From that point lakeward, the next 32-ft lengths of each structure 

 (Section B) were 20 ft in width; the next 100-ft lengths (Section C) 

 were 18 ft in width; the next 300-ft lengths of each structure (Sec- 

 tion D) were 24 ft in width; and the lakeward ends (Sections E and F, 

 50 ft long each) were 30 ft in width. 



1927 The south breakwater was capped with a concrete superstructure (Fig- 

 ure 68). The crest el of the structure was +7.1 ft Iwd. 



1931 The north breakwater was capped with a concrete superstructure (Fig- 

 ure 68) . The lakeward 50 ft of the structure (Section F) was in- 

 stalled at an el of +8.1 ft Iwd, and the remaining portion of the 

 breakwater (Sections A-D) had a +7.1-ft Iwd crest el. 



1983 During a site inspection of the structures no major problems were 

 noted. 



1986 The breakwaters have undergone only routine maintenance since con- 

 struction and are presently considered in good condition. 



112 



